The most expensive espresso machine in the world will produce terrible coffee if it is not maintained. And in Rwanda, where a replacement part might take days or weeks to source, a poorly maintained machine does not just affect coffee quality. It puts your entire operation at risk. The good news is that proper maintenance is not complicated. It requires consistency, the right products, and basic knowledge that every café owner and barista should have.
1. Backflush Every Single Day
Backflushing is the process of forcing water back through the group head to remove coffee oils, grounds, and residue that accumulate during service. On a machine with a three-way solenoid valve, which is standard on any commercial machine, it takes about three minutes and should happen every evening without fail. Skipping even a few days leads to oil buildup that turns rancid, and you will taste it in every cup.
2. Use the Right Cleaning Powder
A backflush with plain water is better than nothing, but a weekly backflush with a dedicated espresso cleaning powder is what actually removes built-up oils and keeps the group head truly clean. Most café owners in Rwanda have used international brands like Pulycaff or Cafiza. They work well. But they are imported, which makes them expensive and occasionally hard to find.
Recommended Product
Pikawa Espresso Cleaning Powder
Pikawa is a locally available espresso cleaning powder that performs identically to Pulycaff and Cafiza. It uses the same active chemistry: sodium percarbonate-based formulation, at a significantly lower price point. For a café doing daily backflushing and weekly deep cleaning, the cost difference over a year is meaningful. We stock it here in Gikondo alongside spare parts and accessories, so you can pick everything up in one trip.
3. Clean the Steam Wand After Every Use
After steaming milk, the wand must be purged (a short burst of steam to clear residue) and wiped with a damp cloth immediately. Dried milk inside a steam wand is nearly impossible to remove and can block the tip entirely. A blocked steam wand means no milk drinks. It is a service call that was entirely avoidable.
4. Replace Gaskets and Shower Screens on Schedule
The group head gasket is the rubber seal that creates a watertight connection between the portafilter and the group. It wears out with use and needs replacing roughly every six to twelve months in a busy café. A new gasket costs almost nothing. Ignoring a worn gasket causes inconsistent pressure, sloppy extraction, and eventually it damages the group head itself. The shower screen should be removed, soaked in cleaning solution, and scrubbed weekly. Replace it once it starts showing pitting or visible corrosion, usually every twelve to eighteen months.
5. Descale the Boiler Regularly
Kigali's water contains minerals that deposit inside your boiler over time: a process called scaling. Limescale insulates the heating element, forces the machine to work harder, increases energy consumption, and will eventually cause the boiler to fail. In a high-volume café, descaling should happen every three to six months.
6. Keep the Drip Tray Clean
This sounds almost too obvious to mention. But a drip tray overflowing onto the counter is a hygiene issue and a bad look for your café. Empty and rinse the drip tray daily. Once a week, remove it completely and clean it properly. Old espresso residue in a warm drip tray grows bacteria faster than most people realise.
7. Purge the Group Head Before Each Shot
Before inserting the portafilter for extraction, run about three seconds of water through the group head. This removes any residual heat from the previous shot and rinses out any loose grounds. It takes two seconds and measurably improves shot consistency.
8. Grind Fresh, and Keep the Grinder Clean Too
Always grind fresh, directly before extraction. Clean the burrs at least once a week with a dry brush or approved grinder cleaning tablets. A clogged or dirty grinder affects flavour and can eventually damage the burrs, which are expensive to replace.
9. Do Not Ignore Warning Signs
Most machine failures are preceded by warning signs that get ignored. A slow pre-infusion. An unusual noise from the pump. Water temperature fluctuating between shots. Pressure dropping faster than usual. These are not quirks. They are warning signs. Addressing them early is almost always cheaper and faster than dealing with the full breakdown they eventually cause.
10. Know Where Your Spare Parts Come From
Before you buy a machine, ask the supplier one simple question: if I need a pump, a solenoid valve, or a group head gasket next month, can you get it for me? If the answer is a confident yes, you have a reliable partner. If the answer is vague, you are about to own a machine whose lifespan depends on parts you may not be able to source locally.
The honest reality in Rwanda
Several machines on the market are sold by vendors who have no parts supply chain. The machine works fine until it does not. Then the vendor is unreachable. This is one of the most avoidable problems in the Rwandan café industry. Choose your supplier based on their service infrastructure, not just the price tag on the machine.
The Maintenance Calendar at a Glance
| Task | Frequency |
|---|---|
| Backflush (water only) | Daily |
| Steam wand purge and wipe | After every use |
| Drip tray emptied and rinsed | Daily |
| Backflush with Pikawa cleaning powder | Weekly |
| Shower screen soak and scrub | Weekly |
| Grinder burrs cleaning | Weekly |
| Gasket inspection | Monthly |
| Full descaling | Every 3–6 months |
| Professional service check | Every 6–12 months |
Blackbuck Coffee · Gikondo, Kigali
Machines, beans, parts and support, all in one place.
Espresso machines for rent from Rwf 100,000/month (grinder and maintenance included) or for purchase. Freshly roasted Rwandan beans. Pikawa cleaning powder. Spare parts in stock.